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气象:2013,39(11):1437-1444
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气温与地表辐射收支的联系:基于禹城和栾城站点资料的分析
(中国科学院大气物理研究所中层大气与全球环境探测重点实验室,北京 100029)
Correlation Between Temperature and Surface Radiation Budget: Analysis of Observational Data from Yucheng and Luancheng Stations
(Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029)
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投稿时间:2012-05-22    修订日期:2013-04-22
中文摘要: 基于对华北禹城和栾城站2005—2006年辐射和气象数据的分析,建立了大气内能与地面总辐射、大气物质吸收、物质散射、大气动能和净辐射之间的能量关系。经验关系可以模拟出2站温度“月平均”的变化规律,其“月平均”计算值与观测值最大正负偏差分别为3.84和-4.05℃,“年均值”计算值与观测值的偏差小于0.36℃。敏感性计算表明,气温对净辐射的变化最敏感,其次是散射因子、吸收因子、地面总辐射、地面风速。净辐射、散射因子、吸收因子、总辐射和地面风速分别增加5%造成气温的变化分别为0.93、-0.40、0.23、-0.20和-0.12℃。研究温度的变化,除了考虑有限的温室气体(如CO2、水汽和臭氧等)的作用,还要考虑其他物质的吸收作用、气液固相物质的散射作用、地表组成和特性的变化、地面风速的变化、总辐射的变化,尤其要重视净辐射的变化。
Abstract:The measurements of solar radiation and meteorology were carried out at Yucheng and Luancheng Stations in North China during 2005-2006. Based on the analysis on the observation data, an energy relation between internal energy of the atmosphere and the surface solar global radiation, the absorption of atmospheric substances, the scattering of substances, the moving energy of atmosphere, the net radiation is developed. The variation of “monthly mean” of surface air temperature at 2 stations is simulated by using the empirical model, the maximum and minimum biases between the calculated and observed surface air temperature are 3.84 and -4.05℃ for “monthly mean”, respectively, and less than 0.36℃ for “annual mean”. The sensitivity calculation shows that the surface air temperature is most sensitive to the variation of net radiation, then to the changes of the scattering of substances, the absorption of atmospheric substances, the moving energy of atmosphere and solar global radiation. The increase of 5% contributed by individual factor, net radiation, the scattering of substances, the absorption of the atmospheric substances, the moving energy of the atmosphere, solar global radiation can cause the changes of surface air temperature by 0.93, -0.40, 0.23, -0.20, -0.12℃, respectively. To study the change of surface air temperature, it is necessary to consider the roles of greenhouse gases (such as CO2, water vapor, and O3). Meanwhile, it is also important to consider the absorption of other substances, the scattering of substances (in gases, liquid and particle phases), the changes of the compositions and characteristics of the Earth’s surface, the changes of surface wind velocity, and solar global radiation, especially the net radiation.
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基金项目:国家自然科学基金项目(40975082和41275137)及中华人民共和国科技部 欧洲空间局合作“龙计划”3期项目(ID10663)共同资助
引用文本:
白建辉,王庚辰,2013.气温与地表辐射收支的联系:基于禹城和栾城站点资料的分析[J].气象,39(11):1437-1444.
BAI Jianhui,WANG Gengchen,2013.Correlation Between Temperature and Surface Radiation Budget: Analysis of Observational Data from Yucheng and Luancheng Stations[J].Meteor Mon,39(11):1437-1444.